HarrisDemocratic41.2%162,185TrumpRepublican57.4%226,197OtherAll other candidates1.4%5,562
R+16.2- Lead
- 64,012
- Total
- 393,944
- vs nation
- R+14.8
modeled Census-place estimatemodeled estimate
Akashiccongressional district
Arizona 8th Congressional District
Office (updates table and map)
President margin by year
Place winner margin
District by 2024 margin · Precinct returns · VEST · MIT Election Lab
The precinct map shows the 2024 presidential vote; the timeline scrubs the district’s overall result across 1892–2024, on its current boundaries.
President results by year
Modeled candidate-vote estimate on current district boundaries
BidenDemocratic42.5%171,454TrumpRepublican56.1%226,121OtherAll other candidates1.4%5,753
R+13.6- Lead
- 54,667
- Total
- 403,328
- vs nation
- R+18.0
modeled Census-place estimatemodeled estimate
ClintonDemocratic37.2%116,652TrumpRepublican56.1%175,729OtherAll other candidates6.7%21,070
R+18.8- Lead
- 59,077
- Total
- 313,451
- vs nation
- R+20.9
exact aggregate
ObamaDemocratic35.5%99,879RomneyRepublican62.7%176,318OtherAll other candidates1.8%5,139
R+27.2- Lead
- 76,439
- Total
- 281,336
- vs nation
- R+31.0
modeled Census-place estimatemodeled estimate
ObamaDemocratic35.7%99,879McCainRepublican62.7%175,512OtherAll other candidates1.6%4,509
R+27.0- Lead
- 75,633
- Total
- 279,900
- vs nation
- R+34.3
modeled Census-place estimatemodeled estimate
KerryDemocratic34.1%83,796BushRepublican65.0%159,659OtherAll other candidates0.9%2,169
R+30.9- Lead
- 75,863
- Total
- 245,624
- vs nation
- R+28.4
modeled Census-place estimatemodeled estimate
GoreDemocratic35.0%64,074BushRepublican61.6%112,791OtherAll other candidates3.5%6,359
R+26.6- Lead
- 48,717
- Total
- 183,224
- vs nation
- R+27.1
modeled Census-place estimatemodeled estimate
ClintonDemocratic37.1%60,595DoleRepublican55.6%90,860OtherAll other candidates7.3%11,969
R+18.5- Lead
- 30,265
- Total
- 163,424
- vs nation
- R+27.0
modeled Census-place estimatemodeled estimate
Key facts
- 2024 presidential margin
- R+16.2MIT Election Lab
- Population
- 794,6322024 5-year
- Population density
- 1,381 / sq mi2024 5-year · TIGER/Line
- Land area
- 575 sq miTIGER/Line
- Median household income
- $82,9252024 5-year
- White (non-Hispanic)
- 64.3%2024 5-year
- Black
- 4.5%2024 5-year
- Hispanic / Latino
- 21.1%2024 5-year
- Peak Democratic margin
- D+23.7 in 1912MIT Election Lab
- Peak Republican margin
- R+57.4 in 1984MIT Election Lab
- Most similar
- Congressional District 5, AZ · twin score 88.6
presidential history
Party record book
Arizona 8th Congressional District · the strongest Democratic and Republican presidential performances recorded here, measured three ways.
1912–2024 · 29 presidential cycles
Highest vote share
Largest share of the presidential candidate vote cast here.
Democratic
Franklin D. Roosevelt1936
57.6%
5,336 votes · D+18.3 · modeled estimate
Runner-up · Franklin D. Roosevelt, 1932 · 53.4%
Republican
Ronald Reagan1984
78.3%
96,707 votes · R+57.4 · modeled estimate
Runner-up · Richard Nixon, 1972 · 75.8%
Most votes
Largest number of votes cast for the party’s presidential nominee here.
Democratic
Joe Biden2020
171,454votes
42.5% of the vote · R+13.6 · modeled estimate
Runner-up · Kamala Harris, 2024 · 162,185 votes
Republican
Donald Trump2024
226,197votes
57.4% of the vote · R+16.2 · modeled estimate
Runner-up · Donald Trump, 2020 · 226,121 votes
Best relative to the U.S.
This Place’s margin against the national margin in the same election — positive when it leaned toward the party more than the country did.
Democratic
Woodrow Wilson1912
+4.1pts D vs U.S.
Place D+23.7 · U.S. D+19.5 · a third-party candidate carried the Place · modeled estimate
Runner-up · Franklin D. Roosevelt, 1936 · −6.0 pts
Republican
Barry Goldwater1964
+47.2pts R vs U.S.
Place R+24.7 · U.S. D+22.6 · modeled estimate
Runner-up · Gerald Ford, 1976 · +44.0 pts
current representation
Current officeholders
Federal officeholders only. State and local officeholders are planned for the next data pass.
U.S. House elections · 12 House
Senate and governor results are in the Office selector at the top of this page.
U.S. House
Each result reflects the U.S. House district as it was drawn for that election; redistricting has redrawn these lines over time, so they can differ from the current 120th-Congress district shown on the map above.
Anchored in the West Valley suburbs of Maricopa County, AZ-08 posted an R+16.2 margin in 2024, making it among the widest presidential spreads in a state otherwise defined by competitive statewide races.
Across the recorded series it reached a Democratic high of 23.7 points in 1912 and a Republican high of 57.4 points in 1984. Between 2020 and 2024 the district moved 2.7 points toward the Republican candidate; the 2024 margin was 16.2 points.
A population of 794,632, a 64% non-Hispanic-white share, and a median household income of $82,925 describe the district. The district's voting pattern over the last decade is most similar to that of Congressional District 5 and Congressional District 1.
Political twins — districts
The congressional districts whose fingerprint — 2000–2024 trajectory, demographics, ancestry, religion — sits closest to this one, and why.
Congressional District 5
Arizona
88.6twin score
2008–2016 trajectory12-yr trend≠ median age
Congressional District 1
Arizona
88.0twin score
elasticity12-yr trend2008–2012 trajectory
Congressional District 6
Arizona
84.3twin score
12-yr trendelasticity2008 margin
Twin score (0–100) = weighted cosine between tier-standardized fingerprints: presidential margins 2000–2024 with 12-yr trend and elasticity, ACS income, age, education, population and race, top reported ancestries, and religious adherence — chips name the closest-shared dimensions and the widest gap. Re-weight the groups in the twins explorer.
District research tools
Open the source-auditable district brief for electoral baseline, electorate, current-cycle coverage, geography, official dates, and methodology. Open campaign intelligence report → · Browse all comparisons →
Cite this page
All citations released under CC BY 4.0. Attribution: Akashic Intelligence.
Arizona 8th Congressional District. Akashic. https://akashic.app/cd/0408/. Accessed May 20, 2026. License: CC BY 4.0.
License: CC BY 4.0
Embed this page
A live widget for your site — no API key, attribution built in, CC BY 4.0. All widgets & sizes →
Arizona at the ballot boxAll elections →
Places within Arizona 8th Congressional District
counties it covers1
Frequently asked questions
How did Arizona 8th Congressional District vote in 2024?
In 2024, Arizona 8th Congressional District voted Republican by 16.2 points (R+16.2), carried by the Republican candidate. Out of 393,944 votes cast, 162,185 went Democratic and 226,197 went Republican.
When did Arizona 8th Congressional District last vote Democratic?
The most recent presidential election in which Arizona 8th Congressional District voted Democratic was 1936.
How many people live in Arizona 8th Congressional District?
Arizona 8th Congressional District has a population of 794,632 according to the 2024 American Community Survey 5-year estimates from the US Census Bureau.
What is the median household income in Arizona 8th Congressional District?
Median household income in Arizona 8th Congressional District is $82,925 — above the national median of $80,734. The Arizona state median is $79,964.
What is the political history of Arizona 8th Congressional District?
Akashic tracks 38 presidential elections in Arizona 8th Congressional District from 1876 to 2024. Of those, 2 went Democratic and 26 went Republican.